package com.itheima;

import com.sun.net.httpserver.HttpServer;

import javax.servlet.ServletException;
import javax.servlet.annotation.WebServlet;
import javax.servlet.http.Cookie;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import java.io.IOException;
import java.io.PrintWriter;
import java.text.SimpleDateFormat;
import java.util.Date;

@WebServlet("/Demo1")
public class Demo1 extends HttpServlet {
    @Override
    protected void doGet(HttpServletRequest req, HttpServletResponse resp) throws ServletException, IOException {
       //通过响应对象写出提示信息
       resp.setContentType("text/html;charset=UTF-8");
        PrintWriter pw = resp.getWriter();
        pw.write("欢迎访问本网站，您的最后访问时间为：<br>");

        //创建cookies对象
        Cookie cookie = new Cookie("time", System.currentTimeMillis() + "");

        cookie.setMaxAge(3600);
        resp.addCookie(cookie);

        Cookie[] arr = req.getCookies();
        for(Cookie c : arr) {
            if("time".equals(c.getName())) {
                //6.获取cookie对象中的value，进行写出
                String value = c.getValue();
                SimpleDateFormat sdf = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss");
                pw.write(sdf.format(new Date(Long.parseLong(value))));
            }
        }


    }

    @Override
    protected void doPost(HttpServletRequest req, HttpServletResponse resp) throws ServletException, IOException {
        doPost(req,resp);
    }
}
